Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
010015excellentexcellent21excellent
000015excellentexcellent21excellent
230013excellentexcellent31excellent
220014excellentexcellent21excellent
210017excellentexcellent31excellent
200018excellentexcellent31excellent
190015excellentexcellent21excellent
180010excellentexcellent21excellent
170014excellentexcellent21excellent
16008excellentexcellent21excellent
150012excellentexcellent21excellent
140012excellentexcellent21excellent
130013excellentexcellent21excellent
120014excellentexcellent21excellent
110023goodexcellent41excellent
100026goodexcellent51excellent
090035goodexcellent61excellent
080046goodexcellent71excellent
070049goodexcellent71excellent
060042goodexcellent41excellent
050037goodexcellent41excellent
040034goodexcellent51excellent
030036goodexcellent51excellent
020035goodexcellent51excellent